US1338420A

US1338420A - Combination hand-tool

Info

Publication number: US1338420A
Application number: US356206A
Authority: US
Inventors: Caldwell George Byron
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-02-04
Filing date: 1920-02-04
Publication date: 1920-04-27
Anticipated expiration: 1937-04-27

Description

l G. B. CALDWELL.

COMBINATION HAND TooL.

APPLICATION FlLED FEB-4,1920.

Patented Apr. 27, 1920.

/Nl/f/VTOP 3 GEORGE BYRON UALDWELL y ,47m/@MK GEORGE BYRON CALDWELL, 0F OTTAWA, ONTARIO, CANADA.

COMBINATION HAND-TOOL.

Specication of Letters Patent.

Patented Apr. 27, 1920.

Application led February 4, 1920. Serial No. 356,206.

A further object is to provide an articlev of the class described consisting of three tools commonly manufactured as separate' tools, and by which inventionI- provide a combination of these respective tools which will be found convenient for operation and accurate in carrying out that for which they have been designed.

A further object of the invention is to provide an article of the class described whereby a number of tools are combined in the one article of manufacture, which article is so designed that any one of the tools forming the combination will be operative' for its own particular use irrespective of the other tools forming the combination.

A further object is to provide an article of the class described consisting in general of a handsaw and the combination' therewith of a rule, square, and T-level', the latter being so formed that it will designate 'the levelness of an article to which either side of the square is placed.

A still further object of the invention is to rovide an article of the class described which will be simple and durable in construction, convenient and accurate in use, and economical in manufacture.

With these and otherv objects in view the invention resides in the novel arrangement l and combination of parts ,hereinafter described in the followingspecification, illustrated in the accompanying drawing, and

set out in the appended claims, it being understood that changes in the precise embodiment or embodiments herein described and illustrated may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings formin specification and in which lile reference designate like parts throughout:

Figure 1 is a side elevation of a saw, part broken away, showing the handle which embodies the several features of my invention;

Fig. 2 shows an enlarged sectional view on the line 2-2 of Fig. 1;

Fig. 3 is a plan view of one of the level retaining plates taken from the inside;

Fig. 4; is a sectional view on the line lt-4: of Fig. 3; and

Fig. 5 is a plan view of the'v saw blade with the levels in position.

Referring to the drawings, 5 indicates a handsaw having the usuall toothed side 6 while its opposite side is provided with a measuring scale 7 of any desired number of units, such as the inch measure, the scale starting from the butt end of the handle as at 8 and extending on one side of the saw blade outwardly from this butt end to the outer end of the blade, while on the opposite side the measuring starts at the outer end and extends toward the butt end.

9 is a handle preferably of wood havlng a bifurcated butt end as at 10 to receive the saw 5 which is normally held in position by ysuitable boltsv 11. These bolts are preferably four in number so as to keep the saw yhandle exactly true in relation to its position to the saw blade, the bolts 11 passing through the blade. v

Centrally at each side of the handle I provide an annular opening as at 12 inwhich the wood or other material from which the handle is made is entirely cut out: The saw blade between these openings 1s rovided with a T-shaped opening 14. he

upper side of the head of the T as shown at 15 is exactly parallel to the measuring sidef? hereinbefore mentioned, while the side 16 of the upwardly extending portion ofthe opening 14 is exactly parallel to the butt end 8 of the saw handle.` Opposite part of this. characters ofv these sides 15 and 16 I provide

vision notches

17 and 18.

Positioned within the T-shaped opening 14 are two levels 19 and 2() each of which may be embedded in a cylindrical casing 21 if so desired, which casing would have a vision opening as at 22. These spirit levels are positioned centrally in the parts of the T-shaped opening, and two

plates

23 and 24 are suitably positioned in the openings'12 so as to hold the spirit levels in proper position, the said plates being so formed as to have receiving openings 28 in which the spirit levels 19 and 20 become embedded when the plates are tightened together by the bolts 25, which bolts passk through the saw blade 5.

From the above description and the illustration which I have shown by Fig. 2, it will be seen that the spirit levels are positioned centrally in the blade and thus af- Jfords a means whereby the levels will always be true in respect to the said blade. The levels being in such a position are visible from either side.

The handle 9 is provided at the corners of its butt( end with

plates

26 and 27, the latter having its corner slightly rounded off while the former forms a true square point with the measuring top side of the blade whereby this combination becomes an L- square, both sides of the butt end of the handle 9 having thereon a measuring scale, which scale begins at the opposite end of the butt end on the opposite sldes.

This invention is an improvement over my U. S. Patent No. 1,305,587, granted June 3, 1919, and while embodying` the basic principle involved in my previous patent this invention contains new novel features for which I respectfully ask that a patent be granted.

From the foregoing it is believed that the advantages of my invention will be readily understood and appreciated, and it is claimed that a convenient combination of a plurality of tools or devicesnsually manufactured and'used as separate articles has been effected in a simple and economical manner and in a manner to permit of accurate use of each or`any of the different articles in the combination.

Having thus described my invention, what I claim as new, is,- v

1. An article of the class described, consisting of a saw blade, one side of said saw blade being provided with cutting teeth, the opposite side of said blade having numerals impressed thereon, a handle having its butt end bifurcated, the end of said saw blade being suitably held in said bifurcated end, oppositely registering openings in the respective sides of said handle, a T-shaped opening in said blade between said openings,A levels positioned in said T- shaped opening, suitable plates in said openings to hold said levels in said saw blade, the level in the top of the T-shaped opening being parallel to the side of the saw on which said numerals are impressed, the other level being parallel to the butt end of said handle. v

2. In an article of the class described, comprising a saw blade, a handle having a biurcated end to receive said saw blade,

means for holding said saw blade in said bifurcated end, the butt end of said handle being at vright angles to the top side of said saw blade so as to form a square, said butt end of said handle and said top side of said blade having a tabulated scale thereon, one side numberlng outwardly from the meeting point of said scales and the other side numbering towards the meeting point of said scales, openings formed in the respective sides of said handle, a T-shaped opening formed in saidblade between said openings, levels positioned in the T-shaped opening, said levels being parallel to the respective measuring sides of said blade and said handle.

In testimony whereof I aiiix mysignature in the presence of two witnesses.

GEORGE BYRON CALDWELL.

Witnesses O. N. C. TAYLOR, M. MCMILLAN.